Chris, aside from the grimace, have you noted any postive results from your presumable zinc repletion?
Dr Michael Colgan notes in one of his books - zinc absortaion varies between 40-02% depending on the food ingested, and losses via ejaculation are only 1mg, athletes could lose 12mg a day via sweat. Hes doesnt recommend more than 50mg.
Im may the now zinc glycinate(albion chelate) when my picolinate runs out.
My immune system and general healing are rock solid, though I wouldn't attribute that to zinc alone. Nothing else particularly noticeable. But zinc is cheap.
Tony,
It may seem like the loss from ejaculation is minor, however, absorption rates of zinc are quite poor. IIRC, an absorption rate of 5-10% from a supplement would be excellent (most are below this rate, if any reach it at all).
I had not seen the sweat number, but that could easily explain why nearly all athletic people I see are deficient in zinc at loss rates like that.
My immune system and general healing are rock solid, though I wouldn't attribute that to zinc alone. Nothing else particularly noticeable. But zinc is cheap.
I will also point out that I am pretty sure I experienced a testosterone boost from increased zinc intake. No concrete numbers, but the occurrence of pitched tents in the morning and such was significantly greater.
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